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(a) There are 3 persons A,B,C. The proba...

(a) There are 3 persons A,B,C. The probability that A alone will survive for 10 years is 4/105 and the probability that Calone will die within 10 years is 2/21. Assuming that the events of the survival of A,B and C can be regarded as independent, calculate the probability of surviving 10 years for person B.

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